Liquid-meter.



C. W. MERK. LIQUID METER. ArPLIoATIoN FILED JULY 30,1903.

Patented Mar. 1, 1910.

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CHARLES W. MERK, F LOS KNGELES, CALIFORNIA.

specmcation of Letters raient.

LIQUID-METER.

Patented Mar. 1l, 1919.

Application filed .Tuly 30, 1908. Serial No. 446,061.

and useful Improvements in Liquid-ilfeters,

of which the following is a specification.

My invention relates to that class of apparatus designed for measuring and registering the' volume of liquid passing through the same, and the object thereof is to produce a. meter that will register the volume of fluid passing through the same under all pressures with absolute accuracy.

My improved liquid meter is composed essentially of a casing divided into two chambers of like and predetermined capacities having inlet and outlet ports controlled by valves operated by floats, said ports and valves and floats being so arranged, conport of one chamber is open its outlet port is closed and the inlet port of the other chamber is closed and the outlet port is opened, and float mechanism in each of said chambers adapted to operate theregistering mechanism only upon the flow of liquid out of said chambers, and locking mechanism to retain the inlet port of one of the chambers open andits outlet portA closeduntil the kchamber is nearly filled with liquid, while the inlet port of the other chamber isheld closed and the outlet port open.

ln the drawings forming a part of this application Figure 1 is a central vertical section of the casing of the meter, with certain of the arts in section. lEigs. 2 and 3 are detailed) views of certainof the clutches, parts being broken away for clearness of illustration.

ln the drawings l is the liquid supply pipe which is preferably provided with a check valve 2 to prevent back iow therethrough. rlhe supply pipe opens into the distributing chamber 3 which is secured upon the bottoms of the measuring chambers 4 and 5 which are connected by mlet ports 6 and 7 with the supply chamber. Chambers 4 and 5 are separated by partition 6a which extends upwardly to web 8 which is secured to the top portion or cover 9 ofthe casing'of the meter.A Pivoted at its center in the supply chamber is the -valve bar 10 which is ,pivotally connected at its ends to the valves 11 and 12 which control the inlet ports 6 and 7. Valve 11 isuprovided with are Aspiral springs 25d.

a stem 13 which is secured upon the Vbottom of valve float 14. Stem 13 has an arm 15 which carries a valve 16 .that controls the outlet port 17 from chamber 4. A pipe 18 connects port 17 to a place of use not shown. Float 14 has aguide stem 19 at the top thereof which reciprocates in a guide hole 20 in 'web 8. A locking. lever 21 is mounted in web 8 in such position that when the liquid is out of chamber 4 it will swing into the path of movement of float 14 and hold the float against rising until the measuring float'Y 22 engages the same and withdraws it from above the valve float. 'lhe measuring float is mounted upon a revoluble threaded shaft 23 and upon a guide shaft 24. Shaft 23 passes in threaded contact through ioat 22 and as said' float rises and falls it rotates shaft 23. Upon the top of shaft 23 is a clutch 25 which is so constructed that it is locked to the hub of bevel gear 26 when shaft 23 is rotated by the fall of float 22, and is unlocked from the hub of said ear when shaft 23 is rotated by the rise of iioat 22. ln the body 25 of the clutch are tangential holes 2521 the outer ends of which are closed by plugs 25?. ln these holes are balls 25, and between the balls and the plugs rThese springs hold the balls in contact with the hub 26a of gear 26, and when the shaft is rotated by the falling of the Hoat these balls.' lock the gear to the clutch body and cause the gear to rotate as shaft 23 is rotated, the clutch body being secured to said shaft by pin 258. Gear 26 meshes with bevel gear 27 which is secured upon shaft 28 revolubly mounted in cover 9.

Valve l2 is provided with `a stem 28 which is secured upon the bottom of valve float 29 in chamber 5. Stem 28 has an arm 30 which carries a valve 31 that controls the outlet port 32 of chamber 5. A pipe 33 connects Vport 32 with pipe 18. Float 29 has a guide stem 34 at the top thereof which reciprocates in a guide hole 35 in web 8. A lockinglever 36 is mounted in web 8 in such position that when the liquid is out of chamber 5 it will swing into the path of movement of float 29 and hold the float against rising until the measuring float 37 engages the same and withdraws it from above the valve float. Measuring Hoat 37 is mounted `on a revoluble threaded shaft 38 and upon a guide shaft 39. Shaft 38 passes in threaded contact through float-37 and as said floatrises and erated by the downward movement of the floats and to be unlocked therefrom when the shafts are rotatedlby the upward movemento the oats; a web in the upper part of the casing havingguide holes therein; guide stems secured to the valve floats and reciprocating in said guide holes; L-shaped locking levers pivoted to said web and adapted to swing into the line of moveinent of the Valve float when the chamber containing the same is empty and to lock the float i' 4' against upward movement; a 'horizontal sha-ft carrying three bevel gear wheels, two of which mesh with the gear wheels operated by the clutchesra'registering mechanism vhaving a master wheel, sa1d master wheelmeshing with `the gear wheel on lthe horizontal shaft; pipes connecting the discharge ports with the' place of use; and a supply pipe leading into said distributing chamber.

In witness that I claim the foregoing I have hereunto subscribed my name this 23rd day of July, 1908'.

CHARLES IV. MEEK.

`Witnesses:

Gr. E. HARPHAM, S. B. AUSTIN. 

